亚芳基乙炔大环的纳米纤维自组装

Nanofibril self-assembly of an arylene ethynylene macrocycle.

作者信息

Balakrishnan Kaushik, Datar Aniket, Zhang Wei, Yang Xiaomei, Naddo Tammene, Huang Jialing, Zuo Jianmin, Yen Max, Moore Jeffrey S, Zang Ling

机构信息

Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, Illinois 62901, USA.

出版信息

J Am Chem Soc. 2006 May 24;128(20):6576-7. doi: 10.1021/ja0618550.

DOI:10.1021/ja0618550

PMID:16704255

Abstract

Nanofibril structures have been fabricated from an arylene ethynylene macrocycle (AEM), which consists of a square frame corner-joined by four carbazole moieties. The fabrication was performed through a gelating process by cooling a warm, homogeneous solution in cyclohexane at high temperature (e.g., 100 degrees C) to room temperature. During the gelation, the molecules become organized, with optimal pi-pi stacking in cooperation with the side-chain association. The favorable pi-pi stacking facilitates the 1D growth of molecular assembly.

摘要

纳米纤维结构是由亚芳基乙炔大环（AEM）制成的，该大环由四个咔唑部分角连接而成的方形框架组成。制备过程是通过凝胶化过程实现的，即将高温（例如100摄氏度）下环己烷中的温热均匀溶液冷却至室温。在凝胶化过程中，分子开始有序排列，通过侧链缔合实现最佳的π-π堆积。有利的π-π堆积促进了分子组装的一维生长。